16349404 has 6 divisors (see below), whose sum is σ = 28611464. Its totient is φ = 8174700.

The previous prime is 16349401. The next prime is 16349419. The reversal of 16349404 is 40494361.

It is a super-2 number, since 2×16349404² = 534606022310432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16349401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043672 + ... + 2043679.

Almost surely, 2^16349404 is an apocalyptic number.

It is an amenable number.

16349404 is a deficient number, since it is larger than the sum of its proper divisors (12262060).

16349404 is a wasteful number, since it uses less digits than its factorization.

16349404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087355 (or 4087353 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 16349404 is about 4043.4396248739. The cubic root of 16349404 is about 253.8052736976.

The spelling of 16349404 in words is "sixteen million, three hundred forty-nine thousand, four hundred four".